| Official Name: | Olginsk |
| Native Name: | Ольгинск |
| Settlement Type: | Settlement |
| Pushpin Map: | Russia Amur Oblast#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Amur Oblast |
| Subdivision Name3: | Selemdzhinsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +9:00 |
| Coordinates: | 52.8667°N 157°W[1] |
Olginsk (Russian: Ольгинск) is a rural locality (a settlement) in Zlatoutovsky Selsoviet of Selemdzhinsky District, Amur Oblast, Russia. The population was 103 as of 2018.[2] There are 3 streets.
Olginsk is located in the valley of the Bolshaya Elga River, 61 km southeast of Ekimchan (the district's administrative centre) by road. Ivanovskoye is the nearest rural locality.[3]